Platform Software Engineer

Job Title:

Platform Software Engineer
Job Category:
Engineering
Time Type:
Full time
Minimum Clearance Required to Start:
None
Employee Type:
Regular
Percentage of

Travel Required:

Up to 10%
Type of Travel:
Continental US
Anticipated Posting End: 9/20/2026

• Define, design, implement, and test components of wireless protocol stacks, ranging from physical layer algorithms to layer 2/layer 3 procedures
• Contribute to systems-level engineering discussions that reconcile the various use cases for our software in pursuit of best-in-class solutions
• Work with customers (both internal and external to CACI) to help integrate our solutions into a wide variety of applications and use cases
• Debug, test, and validate our capabilities using both unit tests as well as scenarios reported by our end users
• Travel to other CACI locations and/or customer sites in the US as necessary (travel requirement is typically 0 - 15%)
• What You Can Bring to Our Team:
• A drive to continuously improve and refine existing capabilities alongside new development opportunities.
• Ability to work with a distributed team and manage your time effectively across multiple, simultaneous projects.
• A strong understanding of modern C++ programming. We consider C++11 to be the minimum but love to use C++17/20 features where appropriate.
• Knowledge of wireless physical layer algorithms and their implementations, or an ability to learn and understand existing implementations.
• Code profiling experience, ability to identify critical code paths, and offer performance optimizations based on analysis over multiple scenarios.
• Experience using wireless test equipment in lab environments, including test setup design.

• A bachelor’s degree (or higher) in Computer Science or Electrical Engineering or equivalent technical degree or an additional 4+ years of experience in lieu of degree.
• 5+ years of related experience
• Experience writing software for Linux-based operating systems
• C/C++ programming experience, shown through project work or code examples
• Demonstrated ability to read and understand technical specifications, and create software-based implementations of the procedures and methods described therein
• Experience working in both SW and HW domains
• Ability to read and understand schematics
• Experience with low level debugging techniques (SW, probes, oscilloscopes)
• Embedded SW development experience on custom designed hardware (Bootloaders, Device Drivers for: Ethernet, PCIe, I2C, SPI, GPS, MDIO, Sensors))
• Embedded Linux OS development experience on custom designed hardware (Yocto, Kernel, Device Driver, File system, Containerization)
• Software development experience for products based on 64-bit ARM and 64-bit x86 processors
• Basic knowledge of RF concepts and Amplifiers
• Networking knowledge (Ethernet 1G/10G/100/G, layer 2 switching, layer
  3)
• Experience with Git change control, GNU Make, Bash scripting, Python
• Excellent communication and interpersonal skills
• The ability to obtain and maintain a US Government Clearance at the TS/SCI level.
• SI-defined mobile radio standards).
• Previous experience with wireless protocols (e.g., 3
  
  GPP cellular protocols, IEEE wireless standards, and/or ITU/ET

• Master’s degree in related field
• Familiarity with virtualization technologies and containerization (e.g., Docker, KVM)

A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.

Your potential is limitless. So is ours.

The proposed salary range for this position is: $82,100-$172,400

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.